Hello Lee. I think what you are looking for is already possible in BW9. In the Browse window configuration options, click "maintain search version after lemma search". Then try removing WTM from your browse window and doing a right-click "search on lemma". You should then get the lemma results without the WTM version becoming visible.
Right, Don. But I was referring specifically to Command Line searches, not right-click "Search on Lemma" searches.